Physics
Which of the following is a result of Surface tension ?

Capillary action
Radiation
Viscosity
Gravitational pull

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Physics
Inside an aeroplane, flying at a high altitude,

the pressure is the same as that outside.
the pressure inside is less than the pressure outside.
normal atmospheric pressure is maintained by the use of air pumps.
normal humidity and partial vacuum are maintained.

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Physics
Which one of the following is the correct sequence of passage of light in a compound microscope?

Objective lens -Condenser -Body tube -Eye piece
Condenser -Objective lens -Body tube -Eyepiece
Eyepiece -Objective lens -Body tube -Mirror
Condenser -Objective lens -Eye -piece -Body tube

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